艾治拿高斯

Panhellenic Championship years

Prior to 1959–60 Greek football was played in regional championships (Athens, Piraeus, and Thessaloniki championships and/or North and South championships) and then the top teams from each region would advance to play for the national championship. In some pre-War years a traditional Final match was played between 2 regional champions, but generally the Panhellenic Championship was played as a final round-robin between at least 3 teams.

1920s–1930s

Ethnikos was Piraeus Champion in 1927–28, but lost the national championship to Aris. The following year Ethnikos was Piraeus Champion once again, but the national championship was not played.

In 1932–33 Ethnikos won the Greek Cup, the club’s only major title. Ethnikos eliminated A.E.K. in the second round, Apollon in the Quarterfinals and Olympiacos in the Semifinals before meeting Aris in the Final. Ethnikos and Aris played to a 2–2 draw in Thessaloniki, but Ethnikos won the replay 2–1 and took the Cup.

In 1934–35 Ethnikos was again Piraeus Champion, and then champion of the South Division, while Aris was champion of the North Division, but Ethnikos and Aris were prevented from playing each other for the national championship due to preparation of the national team for the Balkan Cup.

Ethnikos won another Piraeus Championship in 1938–39, but lost the South Division by 2 points, just missing out on a chance to play for the national championship.

Ethnikos reached the Semifinals of the Greek Cup in 1938–39 and 1939–40, but lost to PAOK and Panathinaikos, respectively.

1950s: the Puskás affair

The Ethnikos teams of the mid-to late 1950s are considered by many to be Ethnikos' greatest teams.

In 1955–56 Ethnikos finished 2nd in Greece, just 1 point behind champions Olympiacos.

In 1956–57 a scandal robbed Ethnikos of the national championship. With 4 matches left in the national championship, Ethnikos was favorite for the title, and next on the schedule was Olympiacos, who Ethnikos had already defeated earlier in the season. Prior to the Olympiacos match though, Ethnikos was disqualified from the championship, on the accusation of professionalism, as they had allegedly been in contact with Hungarian stars Ferenc Puskás, Zoltan Czibor and Sándor Kocsis. According to the press the club had an almost done deal with the Hungarian internationals. Ethnikos was docked 4 points and not allowed to play the final 4 matches of the season, and Olympiacos took the championship.

Alpha Ethniki years

From 1959–60 the Greek championship changed to its modern form and the first division became known as Alpha Ethniki (usually noted as A' Ethniki). Since 1959–60 Ethnikos is tied for the 8th-most first division participations with 36, along with OFI and Apollon. Ahead of Ethnikos are traditional powers Olympiacos, Panathinaikos, AEK and PAOK (all of whom have competed in the first division every season except AEK for two seasons recently) as well as Iraklis, Aris and Panionios. (In 2006–07 the first division was renamed from A' Ethniki to Super League).

1960s

During the 1960s Ethnikos’ best league finishes were 5th in 1962–63 and 6th in 1960–61 and 1967–68. From 1960–61 to 1968–69 Ethnikos never finished outside the top 10.

Ethnikos reached the Semifinals of the Greek Cup twice during the 1960s. In 1967–68 Ethnikos lost in the Semifinals to Panathinaikos. The following year Ethnikos came desperately close to another Cup Final– after defeating PAOK 5–4 in the Quarterfinals, Ethnikos lost to Olympiacos 4–3 after extra time in the Semifinals.

1970s

In 1974–75 Ethnikos made its best challenge for the league championship in the modern era. That season Ethnikos was winter champion, going undefeated through the first half of the season, but they could not keep up the pace and ultimately finished 4th (1 point behind PAOK for 3rd place and a UEFA Cup berth), while Olympiacos took the championship.

Though never making another legitimate challenge for the league championship, Ethnikos remained consistently competitive during the 1970s, never finishing outside of the top 10.

Ethnikos twice had the league’s top scorer during the 1970s: in the 1974–75 Roberto Calcadera’s total of 20 goals was tied for league-best with Panathinaikos’ Antonis Antoniadis and in 1976–77 Thanasis Intzoglou led the league with 22 goals.

Ethnikos’ two best runs in the Greek Cup in the 1970s were halted by PAOK. In 1972–72 Ethnikos lost to PAOK 3–2 in the Semifinals and in 1976–77 Ethnikos was defeated by PAOK in the Quarterfinals.

1980s

Ethnikos made decent 7th-place finishes in 1979–80 and 1980–81, but the team would mostly struggle through the rest of the 1980s.

In 1983–84 and 1985–86 Ethnikos reached the Quarterfinals of the Greek Cup but was then eliminated by Panathinaikos and Olympiacos, respectively. In 1983–84, Ethnikos eliminated Olympiacos in the round of 16 drawing both games (0–0 and 1–1) progressing through the away goals rule. Specifically, in the replay match, Ethnikos was playing roughly 60 minutes with 10 men and despite going 1–0 down at half time, managed to equalize at the last play of the match with a back header coming of the team's centre back Fotis Papadopoulos. It was a shock elimination of Olympiacos who was the heavy favorite of the tie.

In 1986–87 Ethnikos made a very mediocre 10th-place finish, but late in the season earned one of their more memorable results– winning 6–3 away to Panathinaikos. It is Panathinaikos's worst championship home game defeat (since 1960), as no other team has ever scored six goals at Panathinaikos's ground.

The 1987–88 team was the last truly competitive Ethnikos team to date. That year Ethnikos tried to make a run at a UEFA Cup berth, but ultimately fell short and finished 7th. The 7th-place finish though was good enough to take some satisfaction from finishing ahead of Olympiacos, who finished 8th.

In the 1988–89 season Ethnikos made a good run in the Cup, reaching the Semifinals before being eliminated by Panathinaikos, but in the league the team finished in the bottom 3 and was relegated to Beta Ethniki for the first time in their history.

Relegation from Alpha Ethniki

1990s

After being relegated from Alpha Ethniki for the first time in 1989, Ethnikos bounced between A' and B' Ethniki throughout the 1990s. Since a last place finish in 1998–99 though, Ethnikos has not managed to return to A' Ethniki.

The Ethnikos teams of the 1990s included several young players who would leave the club and become star players elsewhere, such as Michalis Kapsis, Yannis Anastasiou and Andreas Niniadis.

2000s

After the 1999–00 season Ethnikos fell from Beta Ethniki to Gamma Ethniki for the first time. The club’s ultimate low point came when it fell from Gamma Ethniki and spent the 2003–04 season in Delta Ethniki.

In summer 2004 Ethnikos merged with A.O. Mani, the club maintained Ethnikos' logo and colors and continued to be based in Piraeus, but in name became Ethnikos Piraeus – A.O. Mani. Ethnikos fans were very upset with the name change, but that problem was eventually solved, as the club was officially renamed Ethnikos Piraeus in 2007.

In 2005–06 Ethnikos earned promotion back to Beta Ethniki in the final minute of the final match of the season. With time expiring, a free kickgoal from Eduardo Sander Da Silva against Messiniakos made the final score 1–1 and gave Ethnikos the point needed for promotion.

Their first season 2006–07 back in the second tier was successful and in the 2009–10 season they reached the promotion play-offs, but failed to win promotion. It was the first time since the 1999 relegation that the team claimed their return to the Greek football's top flight.

2010s

Next season after having been found guilty of forgery during the winter transfer window, the club was forcibly relegated to the Delta Ethniki for the 2011/12 season. Ethnikos were placed in the Group 9 and relegated to the local amateur leagues at the 5th level of the Greek football pyramid, the lowest in their history.

In the 2012/13 season they were crowned Piraeus champions and also reached the Piraeus Cup final, but failed to win promotion to the Football League 2 via the play-offs. Ethnikos won the double in the 2013/14 season (Piraeus champions and Cup winners), and finally managed to return to the third tier of Greek football through the promotion play-offs where they topped the Group 9. The 2014–15 Gamma Ethniki saw them 4th in the Group 4 and runners-up of the Football League 2 Cup. Last season they finished runners-up in the Group 6 of the 2021–22 Gamma Ethniki.

The club celebrated its centennial anniversary with a victory over Agios Nikolaos (1–0) on 19 November 2023.